X0303 4 2010-03-24 0 0000060714 LSB INDUSTRIES INC LXU 0001438255 RYDLUND PAUL 16 SOUTH PENNSYLVANIA AVENUE OKLAHOMA CITY OK 73107 0 1 0 0 Senior Vice President Common Stock 2010-03-24 4 S 0 3630 15.54 D 2870 D Incentive Stock Option 2.73 2011-09-29 Common Stock 3500 3500 D Incentive Stock Option 5.10 2015-11-17 Common Stock 8000 8000 D Incentive Stock Options ("ISO") granted by the Issuer to the reporting person under the Issuer's incentive stock option plan. Each ISO allows the purchase of shares of the Issuer's common stock upon the exercise thereof. Each ISO is for a period of ten years from the date of grant, and each ISO became fully vested on or prior to December 31, 2005. As of the date of this report, the total number of shares underlying this ISO is 3,500. ISO granted on November 17, 2005, by the Issuer to the reporting person under the Issuer's incentive stock option plan. The ISO is for a term of ten years and vests at the end of years one through four in the following amounts: 20%, 20%, 30%, and 30%. The ISO will be fully vested at the end of year four. As of the date of this report, the total number of shares underlying the ISO is 8,000. The price reported is a weighted average price. The shares were sold in multiple transactions at prices per share ranging from $15.50 to $15.59, inclusive. The reporting person undertakes to provide the staff of the Securities and Exchange Commission, LSB Industries, Inc., or any security holder of LSB Industries, Inc., upon request, full information regarding the number of shares sold at each separate price within the range set forth above. Paul Rydlund 2010-03-25